package com.rd.student.jike.class4.xiayinyin.day0728;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.Random;
import java.util.Scanner;

public class Demo02 {
    public static void main(String[] args) throws Exception{
        System.out.println("请输入你想输出的学生人数");
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int number = 1;
        Random random = new Random();
        int begin = random.nextInt(27-n);
        String projectPath = System.getProperty("user.dir");
        File file = new File(projectPath + "/" + "all.txt");
        String content = "郑成祥、王博、孙文卓、郑睿娴、王高博、李春泉、张睿、王星凯、柏云耀、高艺铭、周子贺、杜航、高晨曦、张思韬、孙昊、方周、郭佳宝、姜万里、李宏鸣、薛志鑫、王海鑫、夏银银、吴俊豪、王向阳、徐铭泽、张世煊、才雨鑫、孙国伟、秦嘉林、王岩博、石睿、杜雨坤、黄奕鸣、金洪宇、李鑫、王宇芳、苏岩";
        OutputStream os = new FileOutputStream(file);
        byte[] byteArr = content.getBytes();
        os.write(byteArr);
        os.close();
        String[] strArr = file.list();
        for (String s : strArr){
            if (s.equals("、")){
                number++;
                if (number == begin){
                    System.out.print(s);
                }
                if(number == begin+n){
                    break;
                }
            }
        }
    }
}
